Stark Law Compliance Audit
Step-by-step workflow for auditing physician financial relationships under the Physician Self-Referral Law. Based on 42 C.F.R. Part 411 (Stark Law) and the CMS Self-Referral Disclosure Protocol.
Strict Liability
The Stark Law is a strict liability statute. Unlike the Anti-Kickback Statute, intent is irrelevant. If a financial relationship exists between a referring physician and an entity providing designated health services, and no exception is met, every resulting claim is prohibited. Penalties include refund of all amounts collected, False Claims Act liability (up to 3x damages + $11,000+ per claim), and exclusion from federal healthcare programs. There is no safe harbor for good intentions.
Step 1: Identify All Physician Financial Relationships
Inventory every compensation arrangement between the entity and any referring physician (employment, independent contractor, medical directorship, on-call, leases, equipment purchases)
Inventory every ownership or investment interest held by a referring physician in the entity (direct equity, debt, or through another entity)
Identify indirect compensation arrangements (physician > intermediary > entity) that may create Stark exposure
Map each physician to the designated health services (DHS) they order or refer for (inpatient/outpatient hospital, clinical lab, imaging, DME, home health, outpatient Rx, PT/OT/ST)
Cross-reference your claims data: which physicians generated DHS referrals to your entity in the past 12 months?
Interview department heads and medical staff leadership to surface informal arrangements that may not appear in contracts
Compliance tip: Stark is a strict liability statute. Intent does not matter. If a financial relationship exists and no exception is met, every claim arising from that physician's referrals is a false claim. Start with a complete inventory. Missing even one arrangement can result in False Claims Act liability.
Step 2: Map Each Arrangement to a Stark Exception
For each compensation arrangement, identify the applicable exception (e.g., employment § 411.357(c), personal services § 411.357(d), fair market value § 411.357(l), rental of office space § 411.357(a))
For ownership interests, check whether an ownership exception applies (§ 411.356) or whether the entity qualifies as a whole-hospital exception
Document every element of the exception: each exception has specific requirements that must ALL be satisfied simultaneously
Flag any arrangement that does not clearly fit an exception. These are your highest-risk items.
Create a compliance matrix: rows = arrangements, columns = exception elements, cells = evidence status (documented / gap / not applicable)
Review CMS Advisory Opinions relevant to your arrangement types for interpretive guidance
Compliance tip: Do not force-fit an arrangement into an exception. If the arrangement does not satisfy every element, you do not have Stark protection. Common failure points: personal services arrangements lacking a signed writing, compensation that varies with volume or value of referrals, and agreements that have expired without renewal.
Step 3: Document Fair Market Value for Every Compensation Arrangement
Obtain independent fair market value (FMV) appraisals for all physician compensation arrangements (use a qualified independent valuation firm, not internal estimates)
FMV must reflect the value of the services themselves, not the volume or value of referrals the physician generates
For space and equipment leases: FMV must be consistent with comparable market rates for the same type of space/equipment in the geographic area
For medical director and administrative services: document hours, duties, and comparable market rates for physicians of the same specialty with similar qualifications
Verify that compensation is commercially reasonable even if no referrals were made. Would you pay this amount to a physician who never referred a single patient?
Maintain documentation of the methodology: data sources (MGMA, SullivanCotter, AMGA surveys), comparable transactions, and assumptions used
Compliance tip: FMV is the single most-litigated element in Stark enforcement. CMS has stated that market surveys alone are not sufficient. Your valuation must be specific to the arrangement, not a generic benchmark. If your physician compensation is above the 75th percentile for the specialty, expect enhanced scrutiny. Document why.
Step 4: Review Referral Patterns
Pull 12 months of claims data to identify referral volumes by physician and by DHS category
Compare referral patterns before and after each compensation arrangement was established
Flag any correlation between compensation increases and referral volume increases
Identify physicians with unusually high referral volumes relative to peers in the same specialty
Check for referral concentration: is one physician responsible for a disproportionate share of DHS revenue?
Review whether any productivity-based compensation formulas could be interpreted as varying with the volume or value of referrals (the 'takes into account' analysis under § 411.354(d)(5)-(6))
Compliance tip: Even if your exception documentation is perfect, suspicious referral patterns will trigger OIG and CMS attention. Referral pattern monitoring is not a Stark requirement, but it is an audit defense. If you can demonstrate ongoing monitoring with no anomalies, it strengthens your compliance posture significantly.
Step 5: Verify Written Agreements Meet Exception Requirements
Confirm every arrangement has a signed, written agreement in place (most Stark exceptions require a writing signed by both parties)
Verify the agreement specifies the services to be provided with reasonable detail (not just 'as needed' or 'as requested')
Confirm the term: most exceptions require at least a 1-year term (some allow holdover if a writing existed for the initial term)
Confirm compensation terms are set in advance and do not vary during the term based on referral volume
Check for expired agreements still being performed. This is one of the most common Stark violations: the contract lapsed, services continued, and no exception covers the gap period.
Verify all amendments and renewals are signed before the effective date, not retroactively
Compliance tip: CMS's 2020 Stark modernization rule added the 'writing requirement' exception at § 411.354(e)(3), which can save certain arrangements where the parties failed to satisfy the writing requirement of another exception. However, this is a safety net, not a planning tool. Do not rely on it prospectively. Fix the agreements.
Step 6: Prepare Self-Disclosure if Gaps Are Found
If the audit identifies an arrangement that violated Stark and resulted in claims for DHS, you likely have a disclosure obligation
Calculate the financial exposure: identify every claim for DHS resulting from referrals by the physician during the non-compliant period
Evaluate whether the violation is technical (e.g., missing signature, expired agreement) or substantive (e.g., above-FMV compensation, no applicable exception)
Prepare a Self-Referral Disclosure Protocol (SRDP) submission to CMS. Include: description of the violation, time period, financial analysis, steps taken to correct, and proposed settlement amount.
CMS SRDP settlements typically range from 1.0x to 1.5x the value of the financial benefit conferred (not the full False Claims Act treble damages)
Engage experienced healthcare legal counsel before filing. The disclosure itself creates a record that cannot be undone.
Compliance tip: The SRDP exists because CMS recognizes that many Stark violations are technical, not fraudulent. Self-disclosure before a government investigation begins results in dramatically lower settlements (typically 1.0-1.5x vs. 3x+ under the False Claims Act). If you find a violation, the question is not whether to disclose. It is how quickly you can disclose.
Does This Arrangement Need a Stark Exception?
Does the arrangement involve a physician (or immediate family member) who refers patients to your entity for designated health services (DHS) payable by Medicare?
Continue to next question
Stark Law does not apply. DHS referral relationship is required.
Does a financial relationship exist? This includes any compensation arrangement (direct or indirect) or any ownership/investment interest (direct or indirect).
Continue to next question
Stark Law does not apply. No financial relationship means no prohibition.
Does the arrangement fit squarely within one of the Stark exceptions (42 C.F.R. sections 411.355, 411.356, or 411.357)? Every element of the exception must be satisfied.
Arrangement is protected. Document the exception and all supporting evidence. Re-verify at each renewal.
Continue to next question
Can the arrangement be restructured to fit an exception? (e.g., reduce compensation to FMV, add a written agreement, fix the term length)
Restructure immediately. Do not submit claims for DHS until the arrangement is compliant. Document the fix.
The arrangement violates Stark. Stop billing for DHS from this physician's referrals. Evaluate SRDP self-disclosure. Engage legal counsel.